Browsing by Subject "Major soil science"
Now showing items 21-40 of 41
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(Texas A&M University. Libraries, 1991)Surface mine reclamation in Texas, is often hindered by the formation of acid minesoil. The acidity is a product of FeS2 oxidation. Mixed overburden topsoil substitutes containing FeS2, are often limed to prevent acid ...
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(Texas A&M University. Libraries, 1965)In an effort to relate the chemical com position of soil to the iron chlorosis problem in grain sorghum grown in some of the calcareous soils in Texas, samples were collected from soils that induced this malresponse and ...
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(Texas A&M University. Libraries, 1985)Seven cores and five soils were investigated to characterize the mineralogy of their coarse fractions (>2 μm). The cores and associated soils were sampled from the Wilcox Group sediments overlying lignite at several ...
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(Texas A&M University. Libraries, 1980)Dredged sediments from the Gulf Intracoastal Waterway near Galveston, Texas were used as a substrate in the construction of an artificial marsh. Substrate chemical and physical properties (total Kjeldahl nitrogen, ammonium, ...
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(Texas A&M University. Libraries, 1977)Three radioactive Fe sources were used in a 3 phase study 1) greenhouse experiment to distinguish sorghum (sorghum bicolor) Fe uptake between indigenous and applied, 2) movement of Fe in the soils by mass-flow, and 3) self ...
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(Texas A&M University. Libraries, 1986)Relationships between pedology, geomorphology and stratigraphy were investigated in a dry valley of Niger, the Dallol Bosso. The sediments of the Dallol are mostly fluvial sands which have been reworked by eolian processes. ...
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(Texas A&M University. Libraries, 1988)Burial of spent drilling fluids used in petroleum and natural gas exploration was evaluated as an alternative disposal technique for reducing surface soil contamination in western Texas. Simulated reserve pits were constructed ...
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(Texas A&M University. Libraries, 1991)Decreasing yield of crops grown in soils of the Mbo Plain has been attributed to deficiencies of soil P. The objectives of this study were to classify these soils using the United States Soil Taxonomy System and to determine ...
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(Texas A&M University. Libraries, 1986)An integrated soil genesis, phosphorus and micronutrient (Fe, Mn, Cu, Zn) study was conducted for seven northern Cameroon Vertisols and associated Alfisols. Vertisols developed from Precambrian schist are classified as ...
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(Texas A&M University. Libraries, 1989)The pedons investigated are generally weakly differentiated and are slightly weathered. The Gujranwala profile is the most developed among the three. The field and laboratory observations about the occurrence of argillans ...
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(Texas A&M University. Libraries, 1980)Some soils of the Texas coastal plain are saturated for several months of each year, but do not exhibit the low chroma colors normally associated with poor drainage. Without direct measurement of the water table levels in ...
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(Texas A&M University. Libraries, 1985)Corrosion in the United States is a major economic problem with losses in 1984 estimated at $125 billion (Siebert, 1984). A larger portion of this corrosion can be attributed to degradation of underground metallic structures. ...
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(Texas A&M University. Libraries, 1993)Surface seals reduce crop yields and increase erosion by decreasing infiltration and increasing runoff. Seals form when intense rainfall breaks aggregates into smaller particles that clog pores. The objectives of this study ...
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(Texas A&M University. Libraries, 1990)When crops are cultivated in a row configuration, latent heat flux from the soil (LE[s]) and crop canopy (LE[c]) influence the energy and water balance of the crop. Field experiments were conducted in Lubbock, TX to examine ...
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(Texas A&M University. Libraries, 1987)The objective of this study was to investigate the solubility of phosphorus, iron, and calcium carbonate in flooded soil. Soil solutions were collected and analyzed for the major inorganic solution constituents. Solubility ...
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(Texas A&M University. Libraries, 1985)Arrowleaf clover (Trifolium vesiculosum Savi) and ryegrass (Lolium multiflorum Lam.) are commonly grown together but the fertilizer N needs of these plants when grown in mixture are not well understood. Two greenhouse and ...
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(Texas A&M University. Libraries, 1990)Relationship between landscape position and soil characteristics such as moisture regime, phosphorus fixing capacity, and acidity were investigated on two toposequences of western Niger (West Africa). The toposequences ...
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(Texas A&M University. Libraries, 1991)The National Aeronautics and Space Administration is developing a Controlled Ecological Life Support System (CELSS) for use at a lunar outpost or Mars colony. Plants are an important component of a CELSS because they will ...
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Survival and effectiveness stability of cowpea rhizobia as affected by soil temperature and moisture (Texas A&M University. Libraries, 1981)Vigna unguiculata (L.) Walp and Arachis hypogaea L. are economically important food legumes in the cowpea cross-inoculation group that are nodulated by Rhizobium. Benefits from inoculation depend on survival and effectiveness ...
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(Texas A&M University. Libraries, 1995)